First, it's rarely clear what a specific glue actually is, in terms of chemical composition.
Second, when there is an obvious 'alternative', it might be a different glue (different solvents, ingredients, etc) because of differing regulations. That could mean it handles differently.
Not really, because Glue is quite specific. And just because Glue X can be substituted with glue Y if you glue A and B together, doesn't mean Y is a good glue to bond A and C
